mirror of
https://github.com/dart-lang/sdk
synced 2024-09-06 00:59:09 +00:00
Rename references to "external pages" as "image pages" to avoid confusion with the kind of external memory associated with finalizers.
R=asiva@google.com Review-Url: https://codereview.chromium.org/2654183002 .
This commit is contained in:
parent
15cf5cb017
commit
8b217ec519
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@ -521,7 +521,7 @@ BENCHMARK_SIZE(CoreSnapshotSize) {
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// Write snapshot with object content.
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FullSnapshotWriter writer(Snapshot::kCore, &vm_snapshot_data_buffer,
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&isolate_snapshot_data_buffer, &malloc_allocator,
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NULL, NULL /* instructions_writer */);
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NULL, NULL /* image_writer */);
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writer.WriteFullSnapshot();
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const Snapshot* snapshot =
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Snapshot::SetupFromBuffer(isolate_snapshot_data_buffer);
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@ -559,7 +559,7 @@ BENCHMARK_SIZE(StandaloneSnapshotSize) {
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// Write snapshot with object content.
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FullSnapshotWriter writer(Snapshot::kCore, &vm_snapshot_data_buffer,
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&isolate_snapshot_data_buffer, &malloc_allocator,
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NULL, NULL /* instructions_writer */);
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NULL, NULL /* image_writer */);
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writer.WriteFullSnapshot();
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const Snapshot* snapshot =
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Snapshot::SetupFromBuffer(isolate_snapshot_data_buffer);
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@ -4466,13 +4466,13 @@ Serializer::Serializer(Thread* thread,
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uint8_t** buffer,
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ReAlloc alloc,
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intptr_t initial_size,
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InstructionsWriter* instructions_writer)
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ImageWriter* image_writer)
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: StackResource(thread),
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heap_(thread->isolate()->heap()),
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zone_(thread->zone()),
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kind_(kind),
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stream_(buffer, alloc, initial_size),
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instructions_writer_(instructions_writer),
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image_writer_(image_writer),
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clusters_by_cid_(NULL),
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stack_(),
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num_cids_(0),
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@ -5280,13 +5280,12 @@ class SnapshotTokenStreamVisitor : public ObjectVisitor {
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};
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FullSnapshotWriter::FullSnapshotWriter(
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Snapshot::Kind kind,
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uint8_t** vm_snapshot_data_buffer,
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uint8_t** isolate_snapshot_data_buffer,
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ReAlloc alloc,
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InstructionsWriter* vm_instructions_writer,
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InstructionsWriter* isolate_instructions_writer)
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FullSnapshotWriter::FullSnapshotWriter(Snapshot::Kind kind,
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uint8_t** vm_snapshot_data_buffer,
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uint8_t** isolate_snapshot_data_buffer,
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ReAlloc alloc,
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ImageWriter* vm_image_writer,
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ImageWriter* isolate_image_writer)
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: thread_(Thread::Current()),
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kind_(kind),
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vm_snapshot_data_buffer_(vm_snapshot_data_buffer),
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@ -5294,8 +5293,8 @@ FullSnapshotWriter::FullSnapshotWriter(
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alloc_(alloc),
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vm_isolate_snapshot_size_(0),
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isolate_snapshot_size_(0),
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vm_instructions_writer_(vm_instructions_writer),
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isolate_instructions_writer_(isolate_instructions_writer),
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vm_image_writer_(vm_image_writer),
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isolate_image_writer_(isolate_image_writer),
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token_streams_(Array::Handle(zone())),
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saved_symbol_table_(Array::Handle(zone())),
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new_vm_symbol_table_(Array::Handle(zone())),
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@ -5369,7 +5368,7 @@ intptr_t FullSnapshotWriter::WriteVMSnapshot() {
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ASSERT(vm_snapshot_data_buffer_ != NULL);
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Serializer serializer(thread(), kind_, vm_snapshot_data_buffer_, alloc_,
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kInitialSize, vm_instructions_writer_);
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kInitialSize, vm_image_writer_);
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serializer.ReserveHeader();
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serializer.WriteVersionAndFeatures();
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@ -5383,10 +5382,10 @@ intptr_t FullSnapshotWriter::WriteVMSnapshot() {
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clustered_vm_size_ = serializer.bytes_written();
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if (Snapshot::IncludesCode(kind_)) {
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vm_instructions_writer_->Write(serializer.stream(), true);
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mapped_data_size_ += vm_instructions_writer_->data_size();
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mapped_instructions_size_ += vm_instructions_writer_->text_size();
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vm_instructions_writer_->ResetOffsets();
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vm_image_writer_->Write(serializer.stream(), true);
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mapped_data_size_ += vm_image_writer_->data_size();
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mapped_instructions_size_ += vm_image_writer_->text_size();
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vm_image_writer_->ResetOffsets();
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}
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// The clustered part + the direct mapped data part.
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@ -5400,7 +5399,7 @@ void FullSnapshotWriter::WriteIsolateSnapshot(intptr_t num_base_objects) {
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thread(), Timeline::GetIsolateStream(), "WriteIsolateSnapshot"));
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Serializer serializer(thread(), kind_, isolate_snapshot_data_buffer_, alloc_,
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kInitialSize, isolate_instructions_writer_);
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kInitialSize, isolate_image_writer_);
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ObjectStore* object_store = isolate()->object_store();
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ASSERT(object_store != NULL);
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@ -5413,10 +5412,10 @@ void FullSnapshotWriter::WriteIsolateSnapshot(intptr_t num_base_objects) {
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clustered_isolate_size_ = serializer.bytes_written();
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if (Snapshot::IncludesCode(kind_)) {
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isolate_instructions_writer_->Write(serializer.stream(), false);
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mapped_data_size_ += isolate_instructions_writer_->data_size();
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mapped_instructions_size_ += isolate_instructions_writer_->text_size();
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isolate_instructions_writer_->ResetOffsets();
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isolate_image_writer_->Write(serializer.stream(), false);
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mapped_data_size_ += isolate_image_writer_->data_size();
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mapped_instructions_size_ += isolate_image_writer_->text_size();
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isolate_image_writer_->ResetOffsets();
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}
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// The clustered part + the direct mapped data part.
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@ -5481,9 +5480,11 @@ RawApiError* FullSnapshotReader::ReadVMSnapshot() {
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if (Snapshot::IncludesCode(kind_)) {
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ASSERT(instructions_buffer_ != NULL);
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thread_->isolate()->SetupInstructionsSnapshotPage(instructions_buffer_);
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thread_->isolate()->SetupImagePage(instructions_buffer_,
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/* is_executable */ true);
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ASSERT(data_buffer_ != NULL);
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thread_->isolate()->SetupDataSnapshotPage(data_buffer_);
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thread_->isolate()->SetupImagePage(data_buffer_,
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/* is_executable */ false);
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}
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deserializer.ReadVMSnapshot();
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@ -5503,9 +5504,11 @@ RawApiError* FullSnapshotReader::ReadIsolateSnapshot() {
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if (Snapshot::IncludesCode(kind_)) {
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ASSERT(instructions_buffer_ != NULL);
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thread_->isolate()->SetupInstructionsSnapshotPage(instructions_buffer_);
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thread_->isolate()->SetupImagePage(instructions_buffer_,
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/* is_executable */ true);
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ASSERT(data_buffer_ != NULL);
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thread_->isolate()->SetupDataSnapshotPage(data_buffer_);
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thread_->isolate()->SetupImagePage(data_buffer_,
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/* is_executable */ false);
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}
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deserializer.ReadIsolateSnapshot(thread_->isolate()->object_store());
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@ -119,7 +119,7 @@ class Serializer : public StackResource {
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uint8_t** buffer,
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ReAlloc alloc,
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intptr_t initial_size,
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InstructionsWriter* instructions_writer_);
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ImageWriter* image_writer_);
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~Serializer();
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intptr_t WriteVMSnapshot(const Array& symbols, const Array& scripts);
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@ -259,11 +259,11 @@ class Serializer : public StackResource {
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}
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int32_t GetTextOffset(RawInstructions* instr, RawCode* code) {
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return instructions_writer_->GetOffsetFor(instr, code);
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return image_writer_->GetOffsetFor(instr, code);
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}
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int32_t GetRODataOffset(RawObject* object) {
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return instructions_writer_->GetObjectOffsetFor(object);
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return image_writer_->GetObjectOffsetFor(object);
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}
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Snapshot::Kind kind() const { return kind_; }
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@ -273,7 +273,7 @@ class Serializer : public StackResource {
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Zone* zone_;
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Snapshot::Kind kind_;
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WriteStream stream_;
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InstructionsWriter* instructions_writer_;
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ImageWriter* image_writer_;
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SerializationCluster** clusters_by_cid_;
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GrowableArray<RawObject*> stack_;
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intptr_t num_cids_;
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@ -392,8 +392,8 @@ class FullSnapshotWriter {
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uint8_t** vm_snapshot_data_buffer,
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uint8_t** isolate_snapshot_data_buffer,
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ReAlloc alloc,
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InstructionsWriter* vm_instructions_writer,
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InstructionsWriter* iso_instructions_writer);
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ImageWriter* vm_image_writer,
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ImageWriter* iso_image_writer);
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~FullSnapshotWriter();
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uint8_t** vm_snapshot_data_buffer() const { return vm_snapshot_data_buffer_; }
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@ -428,8 +428,8 @@ class FullSnapshotWriter {
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intptr_t vm_isolate_snapshot_size_;
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intptr_t isolate_snapshot_size_;
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ForwardList* forward_list_;
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InstructionsWriter* vm_instructions_writer_;
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InstructionsWriter* isolate_instructions_writer_;
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ImageWriter* vm_image_writer_;
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ImageWriter* isolate_image_writer_;
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Array& token_streams_;
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Array& saved_symbol_table_;
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Array& new_vm_symbol_table_;
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@ -1600,8 +1600,8 @@ Dart_CreateSnapshot(uint8_t** vm_snapshot_data_buffer,
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FullSnapshotWriter writer(Snapshot::kCore, vm_snapshot_data_buffer,
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isolate_snapshot_data_buffer, ApiReallocate,
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NULL /* vm_instructions_writer */,
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NULL /* isolate_instructions_writer */);
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NULL /* vm_image_writer */,
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NULL /* isolate_image_writer */);
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writer.WriteFullSnapshot();
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if (vm_snapshot_data_buffer != NULL) {
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*vm_snapshot_data_size = writer.VmIsolateSnapshotSize();
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@ -6658,16 +6658,16 @@ Dart_CreateAppAOTSnapshotAsAssembly(uint8_t** assembly_buffer,
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NOT_IN_PRODUCT(TimelineDurationScope tds2(T, Timeline::GetIsolateStream(),
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"WriteAppAOTSnapshot"));
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AssemblyInstructionsWriter instructions_writer(assembly_buffer, ApiReallocate,
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2 * MB /* initial_size */);
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AssemblyImageWriter image_writer(assembly_buffer, ApiReallocate,
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2 * MB /* initial_size */);
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uint8_t* vm_snapshot_data_buffer = NULL;
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uint8_t* isolate_snapshot_data_buffer = NULL;
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FullSnapshotWriter writer(Snapshot::kAppAOT, &vm_snapshot_data_buffer,
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&isolate_snapshot_data_buffer, ApiReallocate,
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&instructions_writer, &instructions_writer);
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&image_writer, &image_writer);
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writer.WriteFullSnapshot();
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*assembly_size = instructions_writer.AssemblySize();
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*assembly_size = image_writer.AssemblySize();
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return Api::Success();
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#endif
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@ -6727,23 +6727,21 @@ Dart_CreateAppAOTSnapshotAsBlobs(uint8_t** vm_snapshot_data_buffer,
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NOT_IN_PRODUCT(TimelineDurationScope tds2(T, Timeline::GetIsolateStream(),
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"WriteAppAOTSnapshot"));
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BlobInstructionsWriter vm_instructions_writer(vm_snapshot_instructions_buffer,
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ApiReallocate,
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2 * MB /* initial_size */);
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BlobInstructionsWriter isolate_instructions_writer(
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isolate_snapshot_instructions_buffer, ApiReallocate,
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2 * MB /* initial_size */);
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FullSnapshotWriter writer(
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Snapshot::kAppAOT, vm_snapshot_data_buffer, isolate_snapshot_data_buffer,
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ApiReallocate, &vm_instructions_writer, &isolate_instructions_writer);
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BlobImageWriter vm_image_writer(vm_snapshot_instructions_buffer,
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ApiReallocate, 2 * MB /* initial_size */);
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BlobImageWriter isolate_image_writer(isolate_snapshot_instructions_buffer,
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ApiReallocate,
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2 * MB /* initial_size */);
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FullSnapshotWriter writer(Snapshot::kAppAOT, vm_snapshot_data_buffer,
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isolate_snapshot_data_buffer, ApiReallocate,
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&vm_image_writer, &isolate_image_writer);
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writer.WriteFullSnapshot();
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*vm_snapshot_data_size = writer.VmIsolateSnapshotSize();
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*vm_snapshot_instructions_size =
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vm_instructions_writer.InstructionsBlobSize();
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*vm_snapshot_instructions_size = vm_image_writer.InstructionsBlobSize();
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*isolate_snapshot_data_size = writer.IsolateSnapshotSize();
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*isolate_snapshot_instructions_size =
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isolate_instructions_writer.InstructionsBlobSize();
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isolate_image_writer.InstructionsBlobSize();
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return Api::Success();
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#endif
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@ -6792,17 +6790,17 @@ Dart_CreateAppJITSnapshotAsBlobs(uint8_t** isolate_snapshot_data_buffer,
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NOT_IN_PRODUCT(TimelineDurationScope tds2(T, Timeline::GetIsolateStream(),
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"WriteAppJITSnapshot"));
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BlobInstructionsWriter isolate_instructions_writer(
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isolate_snapshot_instructions_buffer, ApiReallocate,
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2 * MB /* initial_size */);
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BlobImageWriter isolate_image_writer(isolate_snapshot_instructions_buffer,
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ApiReallocate,
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2 * MB /* initial_size */);
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FullSnapshotWriter writer(Snapshot::kAppJIT, NULL,
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isolate_snapshot_data_buffer, ApiReallocate, NULL,
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&isolate_instructions_writer);
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&isolate_image_writer);
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writer.WriteFullSnapshot();
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*isolate_snapshot_data_size = writer.IsolateSnapshotSize();
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*isolate_snapshot_instructions_size =
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isolate_instructions_writer.InstructionsBlobSize();
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isolate_image_writer.InstructionsBlobSize();
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return Api::Success();
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#endif
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@ -16,7 +16,7 @@
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namespace dart {
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bool GCSweeper::SweepPage(HeapPage* page, FreeList* freelist, bool locked) {
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if (page->embedder_allocated()) {
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if (page->is_image_page()) {
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// Don't clear mark bits.
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return true;
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}
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@ -189,14 +189,14 @@ void Heap::VisitObjects(ObjectVisitor* visitor) const {
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}
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void Heap::VisitObjectsNoExternalPages(ObjectVisitor* visitor) const {
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void Heap::VisitObjectsNoImagePages(ObjectVisitor* visitor) const {
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new_space_.VisitObjects(visitor);
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old_space_.VisitObjectsNoExternalPages(visitor);
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old_space_.VisitObjectsNoImagePages(visitor);
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}
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void Heap::VisitObjectsExternalPages(ObjectVisitor* visitor) const {
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old_space_.VisitObjectsExternalPages(visitor);
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void Heap::VisitObjectsImagePages(ObjectVisitor* visitor) const {
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old_space_.VisitObjectsImagePages(visitor);
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}
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@ -258,9 +258,9 @@ void Heap::IterateOldObjects(ObjectVisitor* visitor) const {
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}
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void Heap::IterateOldObjectsNoExternalPages(ObjectVisitor* visitor) const {
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void Heap::IterateOldObjectsNoImagePages(ObjectVisitor* visitor) const {
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HeapIterationScope heap_iteration_scope;
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old_space_.VisitObjectsNoExternalPages(visitor);
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old_space_.VisitObjectsNoImagePages(visitor);
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}
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@ -531,12 +531,12 @@ ObjectSet* Heap::CreateAllocatedObjectSet(
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{
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VerifyObjectVisitor object_visitor(isolate(), allocated_set,
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mark_expectation);
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this->VisitObjectsNoExternalPages(&object_visitor);
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this->VisitObjectsNoImagePages(&object_visitor);
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}
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{
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VerifyObjectVisitor object_visitor(isolate(), allocated_set,
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kRequireMarked);
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this->VisitObjectsExternalPages(&object_visitor);
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this->VisitObjectsImagePages(&object_visitor);
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}
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Isolate* vm_isolate = Dart::vm_isolate();
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@ -92,7 +92,7 @@ class Heap {
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void IterateObjects(ObjectVisitor* visitor) const;
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void IterateOldObjects(ObjectVisitor* visitor) const;
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void IterateOldObjectsNoExternalPages(ObjectVisitor* visitor) const;
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void IterateOldObjectsNoImagePages(ObjectVisitor* visitor) const;
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void IterateObjectPointers(ObjectVisitor* visitor) const;
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// Find an object by visiting all pointers in the specified heap space,
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@ -245,8 +245,8 @@ class Heap {
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Monitor* barrier() const { return barrier_; }
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Monitor* barrier_done() const { return barrier_done_; }
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void SetupExternalPage(void* pointer, uword size, bool is_executable) {
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old_space_.SetupExternalPage(pointer, size, is_executable);
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void SetupImagePage(void* pointer, uword size, bool is_executable) {
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old_space_.SetupImagePage(pointer, size, is_executable);
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}
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private:
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@ -296,8 +296,8 @@ class Heap {
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// Visit all objects, including FreeListElement "objects". Caller must ensure
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// concurrent sweeper is not running, and the visitor must not allocate.
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void VisitObjects(ObjectVisitor* visitor) const;
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void VisitObjectsNoExternalPages(ObjectVisitor* visitor) const;
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void VisitObjectsExternalPages(ObjectVisitor* visitor) const;
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void VisitObjectsNoImagePages(ObjectVisitor* visitor) const;
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void VisitObjectsImagePages(ObjectVisitor* visitor) const;
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// Like Verify, but does not wait for concurrent sweeper, so caller must
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// ensure thread-safety.
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@ -998,35 +998,10 @@ Thread* Isolate::mutator_thread() const {
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}
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void Isolate::SetupInstructionsSnapshotPage(
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const uint8_t* instructions_snapshot_buffer) {
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InstructionsSnapshot snapshot(instructions_snapshot_buffer);
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#if defined(DEBUG)
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if (FLAG_trace_isolates) {
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OS::Print("Precompiled instructions are at [0x%" Px ", 0x%" Px ")\n",
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reinterpret_cast<uword>(snapshot.instructions_start()),
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reinterpret_cast<uword>(snapshot.instructions_start()) +
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snapshot.instructions_size());
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}
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#endif
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heap_->SetupExternalPage(snapshot.instructions_start(),
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snapshot.instructions_size(),
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/* is_executable = */ true);
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}
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void Isolate::SetupDataSnapshotPage(const uint8_t* data_snapshot_buffer) {
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DataSnapshot snapshot(data_snapshot_buffer);
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#if defined(DEBUG)
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if (FLAG_trace_isolates) {
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OS::Print(
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"Precompiled rodata are at [0x%" Px ", 0x%" Px ")\n",
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reinterpret_cast<uword>(snapshot.data_start()),
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reinterpret_cast<uword>(snapshot.data_start()) + snapshot.data_size());
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}
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#endif
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heap_->SetupExternalPage(snapshot.data_start(), snapshot.data_size(),
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/* is_executable = */ false);
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void Isolate::SetupImagePage(const uint8_t* image_buffer, bool is_executable) {
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Image image(image_buffer);
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heap_->SetupImagePage(image.object_start(), image.object_size(),
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is_executable);
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}
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|
|
@ -254,9 +254,7 @@ class Isolate : public BaseIsolate {
|
|||
library_tag_handler_ = value;
|
||||
}
|
||||
|
||||
void SetupInstructionsSnapshotPage(
|
||||
const uint8_t* instructions_snapshot_buffer);
|
||||
void SetupDataSnapshotPage(const uint8_t* instructions_snapshot_buffer);
|
||||
void SetupImagePage(const uint8_t* snapshot_buffer, bool is_executable);
|
||||
|
||||
void ScheduleMessageInterrupts();
|
||||
|
||||
|
|
|
@ -1051,8 +1051,9 @@ void Object::FinalizeVMIsolate(Isolate* isolate) {
|
|||
WritableVMIsolateScope scope(Thread::Current());
|
||||
PremarkingVisitor premarker;
|
||||
ASSERT(isolate->heap()->UsedInWords(Heap::kNew) == 0);
|
||||
isolate->heap()->IterateOldObjectsNoExternalPages(&premarker);
|
||||
isolate->heap()->IterateOldObjectsNoImagePages(&premarker);
|
||||
// Make the VM isolate read-only again after setting all objects as marked.
|
||||
// Note objects in image pages are already pre-marked.
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -4219,8 +4219,8 @@ class Instructions : public Object {
|
|||
FINAL_HEAP_OBJECT_IMPLEMENTATION(Instructions, Object);
|
||||
friend class Class;
|
||||
friend class Code;
|
||||
friend class AssemblyInstructionsWriter;
|
||||
friend class BlobInstructionsWriter;
|
||||
friend class AssemblyImageWriter;
|
||||
friend class BlobImageWriter;
|
||||
};
|
||||
|
||||
|
||||
|
|
|
@ -149,7 +149,7 @@ class Unmarker : public ObjectVisitor {
|
|||
|
||||
static void UnmarkAll(Isolate* isolate) {
|
||||
Unmarker unmarker;
|
||||
isolate->heap()->VisitObjectsNoExternalPages(&unmarker);
|
||||
isolate->heap()->VisitObjectsNoImagePages(&unmarker);
|
||||
}
|
||||
|
||||
private:
|
||||
|
@ -213,7 +213,7 @@ void ObjectGraph::IterateObjectsFrom(intptr_t class_id,
|
|||
Stack stack(isolate());
|
||||
|
||||
InstanceAccumulator accumulator(&stack, class_id);
|
||||
isolate()->heap()->VisitObjectsNoExternalPages(&accumulator);
|
||||
isolate()->heap()->VisitObjectsNoImagePages(&accumulator);
|
||||
|
||||
stack.TraverseGraph(visitor);
|
||||
Unmarker::UnmarkAll(isolate());
|
||||
|
|
|
@ -93,9 +93,9 @@ HeapPage* HeapPage::Allocate(intptr_t size_in_words, PageType type) {
|
|||
|
||||
|
||||
void HeapPage::Deallocate() {
|
||||
bool is_embedder_allocated = embedder_allocated();
|
||||
bool image_page = is_image_page();
|
||||
|
||||
if (!is_embedder_allocated) {
|
||||
if (!image_page) {
|
||||
LSAN_UNREGISTER_ROOT_REGION(this, sizeof(*this));
|
||||
}
|
||||
|
||||
|
@ -105,7 +105,7 @@ void HeapPage::Deallocate() {
|
|||
|
||||
// For a heap page from a snapshot, the HeapPage object lives in the malloc
|
||||
// heap rather than the page itself.
|
||||
if (is_embedder_allocated) {
|
||||
if (image_page) {
|
||||
free(this);
|
||||
}
|
||||
}
|
||||
|
@ -156,7 +156,7 @@ RawObject* HeapPage::FindObject(FindObjectVisitor* visitor) const {
|
|||
|
||||
|
||||
void HeapPage::WriteProtect(bool read_only) {
|
||||
ASSERT(!embedder_allocated());
|
||||
ASSERT(!is_image_page());
|
||||
|
||||
VirtualMemory::Protection prot;
|
||||
if (read_only) {
|
||||
|
@ -251,11 +251,11 @@ HeapPage* PageSpace::AllocatePage(HeapPage::PageType type) {
|
|||
if (exec_pages_ == NULL) {
|
||||
exec_pages_ = page;
|
||||
} else {
|
||||
if (FLAG_write_protect_code && !exec_pages_tail_->embedder_allocated()) {
|
||||
if (FLAG_write_protect_code && !exec_pages_tail_->is_image_page()) {
|
||||
exec_pages_tail_->WriteProtect(false);
|
||||
}
|
||||
exec_pages_tail_->set_next(page);
|
||||
if (FLAG_write_protect_code && !exec_pages_tail_->embedder_allocated()) {
|
||||
if (FLAG_write_protect_code && !exec_pages_tail_->is_image_page()) {
|
||||
exec_pages_tail_->WriteProtect(true);
|
||||
}
|
||||
}
|
||||
|
@ -643,18 +643,18 @@ void PageSpace::VisitObjects(ObjectVisitor* visitor) const {
|
|||
}
|
||||
|
||||
|
||||
void PageSpace::VisitObjectsNoExternalPages(ObjectVisitor* visitor) const {
|
||||
void PageSpace::VisitObjectsNoImagePages(ObjectVisitor* visitor) const {
|
||||
for (ExclusivePageIterator it(this); !it.Done(); it.Advance()) {
|
||||
if (!it.page()->embedder_allocated()) {
|
||||
if (!it.page()->is_image_page()) {
|
||||
it.page()->VisitObjects(visitor);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void PageSpace::VisitObjectsExternalPages(ObjectVisitor* visitor) const {
|
||||
void PageSpace::VisitObjectsImagePages(ObjectVisitor* visitor) const {
|
||||
for (ExclusivePageIterator it(this); !it.Done(); it.Advance()) {
|
||||
if (it.page()->embedder_allocated()) {
|
||||
if (it.page()->is_image_page()) {
|
||||
it.page()->VisitObjects(visitor);
|
||||
}
|
||||
}
|
||||
|
@ -708,7 +708,7 @@ void PageSpace::WriteProtect(bool read_only) {
|
|||
AbandonBumpAllocation();
|
||||
}
|
||||
for (ExclusivePageIterator it(this); !it.Done(); it.Advance()) {
|
||||
if (!it.page()->embedder_allocated()) {
|
||||
if (!it.page()->is_image_page()) {
|
||||
it.page()->WriteProtect(read_only);
|
||||
}
|
||||
}
|
||||
|
@ -828,15 +828,14 @@ void PageSpace::WriteProtectCode(bool read_only) {
|
|||
HeapPage* page = exec_pages_;
|
||||
while (page != NULL) {
|
||||
ASSERT(page->type() == HeapPage::kExecutable);
|
||||
if (!page->embedder_allocated()) {
|
||||
if (!page->is_image_page()) {
|
||||
page->WriteProtect(read_only);
|
||||
}
|
||||
page = page->next();
|
||||
}
|
||||
page = large_pages_;
|
||||
while (page != NULL) {
|
||||
if (page->type() == HeapPage::kExecutable &&
|
||||
!page->embedder_allocated()) {
|
||||
if (page->type() == HeapPage::kExecutable && !page->is_image_page()) {
|
||||
page->WriteProtect(read_only);
|
||||
}
|
||||
page = page->next();
|
||||
|
@ -1098,9 +1097,7 @@ uword PageSpace::TryAllocatePromoLocked(intptr_t size,
|
|||
}
|
||||
|
||||
|
||||
void PageSpace::SetupExternalPage(void* pointer,
|
||||
uword size,
|
||||
bool is_executable) {
|
||||
void PageSpace::SetupImagePage(void* pointer, uword size, bool is_executable) {
|
||||
// Setup a HeapPage so precompiled Instructions can be traversed.
|
||||
// Instructions are contiguous at [pointer, pointer + size). HeapPage
|
||||
// expects to find objects at [memory->start() + ObjectStartOffset,
|
||||
|
@ -1109,7 +1106,7 @@ void PageSpace::SetupExternalPage(void* pointer,
|
|||
pointer = reinterpret_cast<void*>(reinterpret_cast<uword>(pointer) - offset);
|
||||
size += offset;
|
||||
|
||||
VirtualMemory* memory = VirtualMemory::ForExternalPage(pointer, size);
|
||||
VirtualMemory* memory = VirtualMemory::ForImagePage(pointer, size);
|
||||
ASSERT(memory != NULL);
|
||||
HeapPage* page = reinterpret_cast<HeapPage*>(malloc(sizeof(HeapPage)));
|
||||
page->memory_ = memory;
|
||||
|
@ -1131,13 +1128,11 @@ void PageSpace::SetupExternalPage(void* pointer,
|
|||
if (*first == NULL) {
|
||||
*first = page;
|
||||
} else {
|
||||
if (is_executable && FLAG_write_protect_code &&
|
||||
!(*tail)->embedder_allocated()) {
|
||||
if (is_executable && FLAG_write_protect_code && !(*tail)->is_image_page()) {
|
||||
(*tail)->WriteProtect(false);
|
||||
}
|
||||
(*tail)->set_next(page);
|
||||
if (is_executable && FLAG_write_protect_code &&
|
||||
!(*tail)->embedder_allocated()) {
|
||||
if (is_executable && FLAG_write_protect_code && !(*tail)->is_image_page()) {
|
||||
(*tail)->WriteProtect(true);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -40,7 +40,7 @@ class HeapPage {
|
|||
|
||||
PageType type() const { return type_; }
|
||||
|
||||
bool embedder_allocated() const { return memory_->embedder_allocated(); }
|
||||
bool is_image_page() const { return !memory_->vm_owns_region(); }
|
||||
|
||||
void VisitObjects(ObjectVisitor* visitor) const;
|
||||
void VisitObjectPointers(ObjectPointerVisitor* visitor) const;
|
||||
|
@ -231,8 +231,8 @@ class PageSpace {
|
|||
bool IsValidAddress(uword addr) const { return Contains(addr); }
|
||||
|
||||
void VisitObjects(ObjectVisitor* visitor) const;
|
||||
void VisitObjectsNoExternalPages(ObjectVisitor* visitor) const;
|
||||
void VisitObjectsExternalPages(ObjectVisitor* visitor) const;
|
||||
void VisitObjectsNoImagePages(ObjectVisitor* visitor) const;
|
||||
void VisitObjectsImagePages(ObjectVisitor* visitor) const;
|
||||
void VisitObjectPointers(ObjectPointerVisitor* visitor) const;
|
||||
|
||||
RawObject* FindObject(FindObjectVisitor* visitor,
|
||||
|
@ -318,7 +318,7 @@ class PageSpace {
|
|||
static intptr_t top_offset() { return OFFSET_OF(PageSpace, bump_top_); }
|
||||
static intptr_t end_offset() { return OFFSET_OF(PageSpace, bump_end_); }
|
||||
|
||||
void SetupExternalPage(void* pointer, uword size, bool is_executable);
|
||||
void SetupImagePage(void* pointer, uword size, bool is_executable);
|
||||
|
||||
private:
|
||||
// Ids for time and data records in Heap::GCStats.
|
||||
|
|
|
@ -609,9 +609,9 @@ class RawObject {
|
|||
friend class RetainingPathVisitor; // GetClassId
|
||||
friend class SkippedCodeFunctions; // StorePointer
|
||||
friend class InstructionsReader; // tags_ check
|
||||
friend class InstructionsWriter;
|
||||
friend class AssemblyInstructionsWriter;
|
||||
friend class BlobInstructionsWriter;
|
||||
friend class ImageWriter;
|
||||
friend class AssemblyImageWriter;
|
||||
friend class BlobImageWriter;
|
||||
friend class SnapshotReader;
|
||||
friend class Deserializer;
|
||||
friend class SnapshotWriter;
|
||||
|
@ -1214,7 +1214,7 @@ class RawInstructions : public RawObject {
|
|||
friend class SkippedCodeFunctions;
|
||||
friend class Function;
|
||||
friend class InstructionsReader;
|
||||
friend class InstructionsWriter;
|
||||
friend class ImageWriter;
|
||||
};
|
||||
|
||||
|
||||
|
|
|
@ -679,8 +679,8 @@ RawObject* SnapshotReader::NewInteger(int64_t value) {
|
|||
}
|
||||
|
||||
|
||||
int32_t InstructionsWriter::GetOffsetFor(RawInstructions* instructions,
|
||||
RawCode* code) {
|
||||
int32_t ImageWriter::GetOffsetFor(RawInstructions* instructions,
|
||||
RawCode* code) {
|
||||
#if defined(PRODUCT)
|
||||
// Instructions are only dedup in product mode because it obfuscates profiler
|
||||
// results.
|
||||
|
@ -700,7 +700,7 @@ int32_t InstructionsWriter::GetOffsetFor(RawInstructions* instructions,
|
|||
}
|
||||
|
||||
|
||||
int32_t InstructionsWriter::GetObjectOffsetFor(RawObject* raw_object) {
|
||||
int32_t ImageWriter::GetObjectOffsetFor(RawObject* raw_object) {
|
||||
intptr_t heap_size = raw_object->Size();
|
||||
intptr_t offset = next_object_offset_;
|
||||
next_object_offset_ += heap_size;
|
||||
|
@ -709,7 +709,7 @@ int32_t InstructionsWriter::GetObjectOffsetFor(RawObject* raw_object) {
|
|||
}
|
||||
|
||||
|
||||
void InstructionsWriter::Write(WriteStream* clustered_stream, bool vm) {
|
||||
void ImageWriter::Write(WriteStream* clustered_stream, bool vm) {
|
||||
Thread* thread = Thread::Current();
|
||||
Zone* zone = thread->zone();
|
||||
NOT_IN_PRODUCT(TimelineDurationScope tds(thread, Timeline::GetIsolateStream(),
|
||||
|
@ -735,7 +735,7 @@ void InstructionsWriter::Write(WriteStream* clustered_stream, bool vm) {
|
|||
}
|
||||
|
||||
|
||||
void InstructionsWriter::WriteROData(WriteStream* stream) {
|
||||
void ImageWriter::WriteROData(WriteStream* stream) {
|
||||
stream->Align(OS::kMaxPreferredCodeAlignment);
|
||||
|
||||
// Heap page starts here.
|
||||
|
@ -778,8 +778,7 @@ static void EnsureIdentifier(char* label) {
|
|||
}
|
||||
|
||||
|
||||
void AssemblyInstructionsWriter::WriteText(WriteStream* clustered_stream,
|
||||
bool vm) {
|
||||
void AssemblyImageWriter::WriteText(WriteStream* clustered_stream, bool vm) {
|
||||
Zone* zone = Thread::Current()->zone();
|
||||
|
||||
const char* instructions_symbol =
|
||||
|
@ -795,7 +794,7 @@ void AssemblyInstructionsWriter::WriteText(WriteStream* clustered_stream,
|
|||
// look like a HeapPage.
|
||||
intptr_t instructions_length = next_offset_;
|
||||
WriteWordLiteralText(instructions_length);
|
||||
intptr_t header_words = InstructionsSnapshot::kHeaderSize / sizeof(uword);
|
||||
intptr_t header_words = Image::kHeaderSize / sizeof(uword);
|
||||
for (intptr_t i = 1; i < header_words; i++) {
|
||||
WriteWordLiteralText(0);
|
||||
}
|
||||
|
@ -896,12 +895,12 @@ void AssemblyInstructionsWriter::WriteText(WriteStream* clustered_stream,
|
|||
}
|
||||
|
||||
|
||||
void BlobInstructionsWriter::WriteText(WriteStream* clustered_stream, bool vm) {
|
||||
void BlobImageWriter::WriteText(WriteStream* clustered_stream, bool vm) {
|
||||
// This header provides the gap to make the instructions snapshot look like a
|
||||
// HeapPage.
|
||||
intptr_t instructions_length = next_offset_;
|
||||
instructions_blob_stream_.WriteWord(instructions_length);
|
||||
intptr_t header_words = InstructionsSnapshot::kHeaderSize / sizeof(uword);
|
||||
intptr_t header_words = Image::kHeaderSize / sizeof(uword);
|
||||
for (intptr_t i = 1; i < header_words; i++) {
|
||||
instructions_blob_stream_.WriteWord(0);
|
||||
}
|
||||
|
|
|
@ -211,19 +211,18 @@ class Snapshot {
|
|||
};
|
||||
|
||||
|
||||
class InstructionsSnapshot : ValueObject {
|
||||
class Image : ValueObject {
|
||||
public:
|
||||
explicit InstructionsSnapshot(const void* raw_memory)
|
||||
: raw_memory_(raw_memory) {
|
||||
explicit Image(const void* raw_memory) : raw_memory_(raw_memory) {
|
||||
ASSERT(Utils::IsAligned(raw_memory, OS::kMaxPreferredCodeAlignment));
|
||||
}
|
||||
|
||||
void* instructions_start() {
|
||||
void* object_start() {
|
||||
return reinterpret_cast<void*>(reinterpret_cast<uword>(raw_memory_) +
|
||||
kHeaderSize);
|
||||
}
|
||||
|
||||
uword instructions_size() {
|
||||
uword object_size() {
|
||||
uword snapshot_size = *reinterpret_cast<const uword*>(raw_memory_);
|
||||
return snapshot_size - kHeaderSize;
|
||||
}
|
||||
|
@ -233,34 +232,7 @@ class InstructionsSnapshot : ValueObject {
|
|||
private:
|
||||
const void* raw_memory_; // The symbol kInstructionsSnapshot.
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(InstructionsSnapshot);
|
||||
};
|
||||
|
||||
|
||||
class DataSnapshot : ValueObject {
|
||||
public:
|
||||
explicit DataSnapshot(const void* raw_memory) : raw_memory_(raw_memory) {
|
||||
ASSERT(Utils::IsAligned(raw_memory, 2 * kWordSize)); // kObjectAlignment
|
||||
}
|
||||
|
||||
void* data_start() {
|
||||
return reinterpret_cast<void*>(reinterpret_cast<uword>(raw_memory_) +
|
||||
kHeaderSize);
|
||||
}
|
||||
|
||||
uword data_size() {
|
||||
uword snapshot_size = *reinterpret_cast<const uword*>(raw_memory_);
|
||||
return snapshot_size - kHeaderSize;
|
||||
}
|
||||
|
||||
// Header: data length and padding for alignment. We use the same alignment
|
||||
// as for code for now.
|
||||
static const intptr_t kHeaderSize = OS::kMaxPreferredCodeAlignment;
|
||||
|
||||
private:
|
||||
const void* raw_memory_; // The symbol kDataSnapshot.
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(DataSnapshot);
|
||||
DISALLOW_COPY_AND_ASSIGN(Image);
|
||||
};
|
||||
|
||||
|
||||
|
@ -728,17 +700,17 @@ class ForwardList {
|
|||
};
|
||||
|
||||
|
||||
class InstructionsWriter : public ZoneAllocated {
|
||||
class ImageWriter : public ZoneAllocated {
|
||||
public:
|
||||
InstructionsWriter()
|
||||
ImageWriter()
|
||||
: next_offset_(0), next_object_offset_(0), instructions_(), objects_() {
|
||||
ResetOffsets();
|
||||
}
|
||||
virtual ~InstructionsWriter() {}
|
||||
virtual ~ImageWriter() {}
|
||||
|
||||
void ResetOffsets() {
|
||||
next_offset_ = InstructionsSnapshot::kHeaderSize;
|
||||
next_object_offset_ = DataSnapshot::kHeaderSize;
|
||||
next_offset_ = Image::kHeaderSize;
|
||||
next_object_offset_ = Image::kHeaderSize;
|
||||
instructions_.Clear();
|
||||
objects_.Clear();
|
||||
}
|
||||
|
@ -785,16 +757,16 @@ class InstructionsWriter : public ZoneAllocated {
|
|||
GrowableArray<ObjectData> objects_;
|
||||
|
||||
private:
|
||||
DISALLOW_COPY_AND_ASSIGN(InstructionsWriter);
|
||||
DISALLOW_COPY_AND_ASSIGN(ImageWriter);
|
||||
};
|
||||
|
||||
|
||||
class AssemblyInstructionsWriter : public InstructionsWriter {
|
||||
class AssemblyImageWriter : public ImageWriter {
|
||||
public:
|
||||
AssemblyInstructionsWriter(uint8_t** assembly_buffer,
|
||||
ReAlloc alloc,
|
||||
intptr_t initial_size)
|
||||
: InstructionsWriter(),
|
||||
AssemblyImageWriter(uint8_t** assembly_buffer,
|
||||
ReAlloc alloc,
|
||||
intptr_t initial_size)
|
||||
: ImageWriter(),
|
||||
assembly_stream_(assembly_buffer, alloc, initial_size),
|
||||
text_size_(0) {}
|
||||
|
||||
|
@ -817,16 +789,16 @@ class AssemblyInstructionsWriter : public InstructionsWriter {
|
|||
WriteStream assembly_stream_;
|
||||
intptr_t text_size_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(AssemblyInstructionsWriter);
|
||||
DISALLOW_COPY_AND_ASSIGN(AssemblyImageWriter);
|
||||
};
|
||||
|
||||
|
||||
class BlobInstructionsWriter : public InstructionsWriter {
|
||||
class BlobImageWriter : public ImageWriter {
|
||||
public:
|
||||
BlobInstructionsWriter(uint8_t** instructions_blob_buffer,
|
||||
ReAlloc alloc,
|
||||
intptr_t initial_size)
|
||||
: InstructionsWriter(),
|
||||
BlobImageWriter(uint8_t** instructions_blob_buffer,
|
||||
ReAlloc alloc,
|
||||
intptr_t initial_size)
|
||||
: ImageWriter(),
|
||||
instructions_blob_stream_(instructions_blob_buffer,
|
||||
alloc,
|
||||
initial_size) {}
|
||||
|
@ -841,7 +813,7 @@ class BlobInstructionsWriter : public InstructionsWriter {
|
|||
private:
|
||||
WriteStream instructions_blob_stream_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(BlobInstructionsWriter);
|
||||
DISALLOW_COPY_AND_ASSIGN(BlobImageWriter);
|
||||
};
|
||||
|
||||
|
||||
|
|
|
@ -1186,7 +1186,7 @@ UNIT_TEST_CASE(FullSnapshot) {
|
|||
{
|
||||
FullSnapshotWriter writer(
|
||||
Snapshot::kCore, NULL, &isolate_snapshot_data_buffer,
|
||||
&malloc_allocator, NULL, NULL /* instructions_writer */);
|
||||
&malloc_allocator, NULL, NULL /* image_writer */);
|
||||
writer.WriteFullSnapshot();
|
||||
}
|
||||
}
|
||||
|
@ -1243,7 +1243,7 @@ UNIT_TEST_CASE(FullSnapshot1) {
|
|||
{
|
||||
FullSnapshotWriter writer(
|
||||
Snapshot::kCore, NULL, &isolate_snapshot_data_buffer,
|
||||
&malloc_allocator, NULL, NULL /* instructions_writer */);
|
||||
&malloc_allocator, NULL, NULL /* image_writer */);
|
||||
writer.WriteFullSnapshot();
|
||||
}
|
||||
|
||||
|
|
|
@ -28,12 +28,12 @@ void VirtualMemory::Truncate(intptr_t new_size, bool try_unmap) {
|
|||
}
|
||||
|
||||
|
||||
VirtualMemory* VirtualMemory::ForExternalPage(void* pointer, uword size) {
|
||||
VirtualMemory* VirtualMemory::ForImagePage(void* pointer, uword size) {
|
||||
// Memory for precompilated instructions was allocated by the embedder, so
|
||||
// create a VirtualMemory without allocating.
|
||||
MemoryRegion region(pointer, size);
|
||||
VirtualMemory* memory = new VirtualMemory(region);
|
||||
memory->embedder_allocated_ = true;
|
||||
memory->vm_owns_region_ = false;
|
||||
return memory;
|
||||
}
|
||||
|
||||
|
|
|
@ -64,9 +64,9 @@ class VirtualMemory {
|
|||
// Commit a reserved memory area, so that the memory can be accessed.
|
||||
bool Commit(uword addr, intptr_t size, bool is_executable);
|
||||
|
||||
bool embedder_allocated() const { return embedder_allocated_; }
|
||||
bool vm_owns_region() const { return vm_owns_region_; }
|
||||
|
||||
static VirtualMemory* ForExternalPage(void* pointer, uword size);
|
||||
static VirtualMemory* ForImagePage(void* pointer, uword size);
|
||||
|
||||
private:
|
||||
static VirtualMemory* ReserveInternal(intptr_t size);
|
||||
|
@ -81,7 +81,7 @@ class VirtualMemory {
|
|||
: region_(region.pointer(), region.size()),
|
||||
reserved_size_(region.size()),
|
||||
handle_(handle),
|
||||
embedder_allocated_(false) {}
|
||||
vm_owns_region_(true) {}
|
||||
|
||||
MemoryRegion region_;
|
||||
|
||||
|
@ -93,8 +93,10 @@ class VirtualMemory {
|
|||
|
||||
static uword page_size_;
|
||||
|
||||
// True for a region provided by the embedder.
|
||||
bool embedder_allocated_;
|
||||
// False for a part of a snapshot added directly to the Dart heap, which
|
||||
// belongs to the the embedder and must not be deallocated or have its
|
||||
// protection status changed by the VM.
|
||||
bool vm_owns_region_;
|
||||
|
||||
DISALLOW_IMPLICIT_CONSTRUCTORS(VirtualMemory);
|
||||
};
|
||||
|
|
|
@ -54,7 +54,7 @@ static void unmap(void* address, intptr_t size) {
|
|||
|
||||
|
||||
VirtualMemory::~VirtualMemory() {
|
||||
if (!embedder_allocated()) {
|
||||
if (vm_owns_region()) {
|
||||
unmap(address(), reserved_size_);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -171,7 +171,7 @@ VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
|
|||
|
||||
|
||||
VirtualMemory::~VirtualMemory() {
|
||||
if (!embedder_allocated()) {
|
||||
if (vm_owns_region()) {
|
||||
mx_handle_t vmar = static_cast<mx_handle_t>(handle());
|
||||
mx_status_t status = mx_vmar_destroy(vmar);
|
||||
if (status != NO_ERROR) {
|
||||
|
|
|
@ -53,7 +53,7 @@ static void unmap(void* address, intptr_t size) {
|
|||
|
||||
|
||||
VirtualMemory::~VirtualMemory() {
|
||||
if (!embedder_allocated()) {
|
||||
if (vm_owns_region()) {
|
||||
unmap(address(), reserved_size_);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -54,7 +54,7 @@ static void unmap(void* address, intptr_t size) {
|
|||
|
||||
|
||||
VirtualMemory::~VirtualMemory() {
|
||||
if (!embedder_allocated()) {
|
||||
if (!vm_owns_region()) {
|
||||
unmap(address(), reserved_size_);
|
||||
}
|
||||
}
|
||||
|
|
|
@ -35,7 +35,7 @@ VirtualMemory* VirtualMemory::ReserveInternal(intptr_t size) {
|
|||
|
||||
|
||||
VirtualMemory::~VirtualMemory() {
|
||||
if (embedder_allocated() || (reserved_size_ == 0)) {
|
||||
if (!vm_owns_region() || (reserved_size_ == 0)) {
|
||||
return;
|
||||
}
|
||||
if (VirtualFree(address(), 0, MEM_RELEASE) == 0) {
|
||||
|
|
Loading…
Reference in a new issue